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Articles 8611 - 8640 of 11111

Full-Text Articles in Medical Specialties

Enhancing Immunization Rates In Two Urban Academic Primary Care Clinics: A Before And After Assessment, Zeeshan Yacoob, Christopher Cook, Fabiana Kotovicz, Jessica J.F. Kram, Marianne Klumph, Marisa Stanley, Paul Hunter, Dennis J. Baumgardner Jan 2020

Enhancing Immunization Rates In Two Urban Academic Primary Care Clinics: A Before And After Assessment, Zeeshan Yacoob, Christopher Cook, Fabiana Kotovicz, Jessica J.F. Kram, Marianne Klumph, Marisa Stanley, Paul Hunter, Dennis J. Baumgardner

Journal of Patient-Centered Research and Reviews

Purpose: Immunization rates in many cities in the United States remain suboptimal compared to Healthy People 2020 Goals and are lower than national averages. This study aimed to determine whether a lecture-based educational intervention targeted at nurses and medical assistants would improve vaccination rates.

Methods: We conducted a quality improvement study in two urban academic family medicine clinics serving a predominantly Medicaid patient population as well as a sizable proportion of refugees. The intervention consisted of 3 lectures that were delivered to clinic nurses and medical assistants. Vaccinations in 1689 patients — 872 in the 3-month preintervention period, 817 in …


Cryptococcal Antigen Testing In An Integrated Medical System: Eastern Wisconsin, Marianne Klumph, Brian Hoeynck, Dennis J. Baumgardner Jan 2020

Cryptococcal Antigen Testing In An Integrated Medical System: Eastern Wisconsin, Marianne Klumph, Brian Hoeynck, Dennis J. Baumgardner

Journal of Patient-Centered Research and Reviews

Cryptococcosis is a serious environmentally acquired endemic fungal infection commonly associated with immunocompromised hosts. Little is known regarding frequency or distribution in Wisconsin. We explored the geodemographic and clinical features of patients tested with cryptococcal antigen tests (CrAg) — previously shown to be >90% sensitive and >90% specific — within a large health care system located in eastern Wisconsin. To examine this, we retrospectively analyzed 1465 CrAg tests on 1211 unique patients (female: 50.2%; white race: 73.9%; mean age: 53.7 ± 16.5 years). At least one CrAg result was positive in 23 of 1211 patients (1.9%). From these, 21 of …


A Five Chambered Heart, George Hanna, Javad Savoj, Syed Iftikhar, Scott Kubomoto, Patrick Hu Jan 2020

A Five Chambered Heart, George Hanna, Javad Savoj, Syed Iftikhar, Scott Kubomoto, Patrick Hu

Internal Medicine

No abstract provided.


Catch 22 : To Anticoagulate Or Not To Anticoagulate, Muhammad Madkour, Patrick Hu Jan 2020

Catch 22 : To Anticoagulate Or Not To Anticoagulate, Muhammad Madkour, Patrick Hu

Internal Medicine

No abstract provided.


How Deep Is Too Deep?, Dietrich Schlueter Md, Asma Jamil Md, Ibrahim Talab, Samia Faiz, Scott Kubomoto Md Jan 2020

How Deep Is Too Deep?, Dietrich Schlueter Md, Asma Jamil Md, Ibrahim Talab, Samia Faiz, Scott Kubomoto Md

Internal Medicine

No abstract provided.


Assessment Of Guideline Recommended Anti-Coagulation Rates For Atrial Fibrillation In An Outpatient Resident Clinic, Kanav Gupta Md, Emily Langnas Do, Zahra Khaled, Travis Tagami Do, Alexandra Halalau Md Jan 2020

Assessment Of Guideline Recommended Anti-Coagulation Rates For Atrial Fibrillation In An Outpatient Resident Clinic, Kanav Gupta Md, Emily Langnas Do, Zahra Khaled, Travis Tagami Do, Alexandra Halalau Md

Internal Medicine

No abstract provided.


Giant 75mm Intracranial Aneurysm Masquerading As Primary Malignancy, Andrew W. Hwang, Satvir Dhillon Md, Remus Popa Jan 2020

Giant 75mm Intracranial Aneurysm Masquerading As Primary Malignancy, Andrew W. Hwang, Satvir Dhillon Md, Remus Popa

Internal Medicine

No abstract provided.


Always Remember To Floss... Or Else, Arunmozhi (Sankavi) Aravagiri Md, Muhammad Zain Md, Rajesh Gulati Md Jan 2020

Always Remember To Floss... Or Else, Arunmozhi (Sankavi) Aravagiri Md, Muhammad Zain Md, Rajesh Gulati Md

Internal Medicine

No abstract provided.


Is The Thomas Ring An Effective Approach To Prevent Recurrence Of Persistent Atrial Fibrillation With Advanced Atrial Fibrosis?, Ruifang Yang Md, Jose Luis Henao Md, David Goldgrab Do, Sokol Kalaveshi Md, Stephen Mester Md, Christian Perzanowski Md Jan 2020

Is The Thomas Ring An Effective Approach To Prevent Recurrence Of Persistent Atrial Fibrillation With Advanced Atrial Fibrosis?, Ruifang Yang Md, Jose Luis Henao Md, David Goldgrab Do, Sokol Kalaveshi Md, Stephen Mester Md, Christian Perzanowski Md

Cardiology

Introduction | Objectives: Pulmonary vein isolation (PVI) with the Thomas ring (TR, single ring posterior wall isolation) has been shown to reduce recurrence of primarily paroxysmal atrial fibrillation (AF). Atrial fibrosis, as an important pathophysiological contributor, is directly linked to AF recurrence and resistance to therapy. The effect of TR ablation on outcomes of persistent AF (peAF) with advanced atrial fibrosis has not been adequately studied.

Methods: Observational series of three peAF patients (Tab.) who underwent TR. The degree of atrial fibrosis was determined by electroanatomic bipolar voltage mapping (CARTO, Diamond Bar, CA, USA). The reduced voltage areas (Fig.) reflected …


Ablation Of Persistent Atrial Fibrillation Substrate In Sinus Rhythm Does Not Lead To An Underestimation Of Fibrotic Atrial Myopathy: A Pilot Study, David Goldgrab Do, Sokol Kalaveshi Md, Jose Luis Henao Md, Ruifang Yang Md, Jearim Craig, Stephen Mester Md, Christian Perzanowski Md Jan 2020

Ablation Of Persistent Atrial Fibrillation Substrate In Sinus Rhythm Does Not Lead To An Underestimation Of Fibrotic Atrial Myopathy: A Pilot Study, David Goldgrab Do, Sokol Kalaveshi Md, Jose Luis Henao Md, Ruifang Yang Md, Jearim Craig, Stephen Mester Md, Christian Perzanowski Md

Cardiology

Introduction | Objectives: Ablation of persistent atrial fibrillation (peAF) is associated with a worse outcome. Fibrotic atrial myopathy (FAM) is thought to play a role in the progression of AF. Estimation of left atrial voltage can vary significantly based on whether mapping is performed in fibrillatory conduction or sinus rhythm (SR). Selection of a voltage scale (VS) may lead to an over/under estimation of FAM. We determined the prevalence of advanced atrial myopathy (FAM > = 2) in SR compared to historical cohort ablated in peAF.

Methods: A homogenous group of peAF patients who underwent ablation in SR following cardioversion were …


Cardioversion Of Persistent Atrial Fibrillation Before High Energy Ablation Does Not Improve Outcomes In Short Term Follow Up: Preliminary Analysis, Ruifang Yang Md, Sokol Kalaveshi Md, David Goldgrab Do, Jose Luis Henao Md, Stephen Mester Md, Christian Perzanowski Md Jan 2020

Cardioversion Of Persistent Atrial Fibrillation Before High Energy Ablation Does Not Improve Outcomes In Short Term Follow Up: Preliminary Analysis, Ruifang Yang Md, Sokol Kalaveshi Md, David Goldgrab Do, Jose Luis Henao Md, Stephen Mester Md, Christian Perzanowski Md

Cardiology

Introduction | Objectives: The optimal approach of ablating persistent Atrial Fibrillation (peAF) has yet to be defined. By convention, mapping/ablation of peAF is most often performed in AF. The success of ablation hinges on catheter contact and achieving lesion transmurality. We theorized that ablation efficacy would improve during sinus rhythm (SR) given stability and predictability of catheter contact.

Methods: Non‐randomized comparison of peAF patients who underwent ablation in SR under a new practice protocol versus a cohort of peAF ablated in AF. The lesion set was the same for both groups, WACA ± BOX. Study group was treated with higher …


Social Values For Health Technology Assessment In Canada: A Scoping Review Of Hepatitis C Screening, Diagnosis And Treatment, Caroline O'Keefe-Markman, Kristina Dawn Lea, Christopher Mccabe, Elaine Hyshka, Tania M. Bubela Jan 2020

Social Values For Health Technology Assessment In Canada: A Scoping Review Of Hepatitis C Screening, Diagnosis And Treatment, Caroline O'Keefe-Markman, Kristina Dawn Lea, Christopher Mccabe, Elaine Hyshka, Tania M. Bubela

Office of the Provost

Background: Health care system decision makers face challenges in allocating resources for screening, diagnosis and treatment of hepatitis C. Approximately 240,000 individuals are infected with the hepatitis C virus (HCV) in Canada. Populations most affected by HCV include Indigenous people, people who inject drugs, immigrants and homeless or incarcerated populations as well as those born between 1946 and 1965. Curative but expensive drug regimens of novel direct acting antivirals (DAAs) are available. We aim to identify social values from academic literature for inclusion in health technology assessments.
Methods: We conducted a scoping review of academic literature to identify and analyze …


Calcium Alkali Thiazide Syndrome, Mehboob A. Rehan Md, Asma Rashid Md, Reema Singh Md, Gabutti Cristina, Luma Mohsin Md, Tausha Allen Md, Paul Stanford Md, James Thomson Md Jan 2020

Calcium Alkali Thiazide Syndrome, Mehboob A. Rehan Md, Asma Rashid Md, Reema Singh Md, Gabutti Cristina, Luma Mohsin Md, Tausha Allen Md, Paul Stanford Md, James Thomson Md

Internal Medicine

No abstract provided.


Evidence For The Misfolding Of The A1 Domain Within Multimeric Von Willebrand Factor In Type 2 Von Willebrand Disease, Alexander Tischer, Maria A Brehm, Venkata R Machha, Laurie Moon-Tasson, Linda M Benson, Katelynn J Nelton, Rachel R Leger, Tobias Obser, Marina Martinez-Vargas, Steven T Whitten, Dong Chen, Rajiv K Pruthi, H Robert Bergen, Miguel A Cruz, Reinhard Schneppenheim, Matthew Auton Jan 2020

Evidence For The Misfolding Of The A1 Domain Within Multimeric Von Willebrand Factor In Type 2 Von Willebrand Disease, Alexander Tischer, Maria A Brehm, Venkata R Machha, Laurie Moon-Tasson, Linda M Benson, Katelynn J Nelton, Rachel R Leger, Tobias Obser, Marina Martinez-Vargas, Steven T Whitten, Dong Chen, Rajiv K Pruthi, H Robert Bergen, Miguel A Cruz, Reinhard Schneppenheim, Matthew Auton

Faculty, Staff and Students Publications

Von Willebrand factor (VWF), an exceptionally large multimeric plasma glycoprotein, functions to initiate coagulation by agglutinating platelets in the blood stream to sites of vascular injury. This primary hemostatic function is perturbed in type 2 dysfunctional subtypes of von Willebrand disease (VWD) by mutations that alter the structure and function of the platelet GPIbα adhesive VWF A1 domains. The resulting amino acid substitutions cause local disorder and misfold the native structure of the isolated platelet GPIbα-adhesive A1 domain of VWF in both gain-of-function (type 2B) and loss-of-function (type 2M) phenotypes. These structural effects have not been explicitly observed in A1 …


Flexor Tenotomy For The Treatment Of Hallux Ulcers, Nathalia Esmeral, Val E. Haddon, Chase G. Dahl, Erin Lewis, David Khakshoor Jan 2020

Flexor Tenotomy For The Treatment Of Hallux Ulcers, Nathalia Esmeral, Val E. Haddon, Chase G. Dahl, Erin Lewis, David Khakshoor

Podiatry

Aims: To assess and evaluate the relationship between flexor tenotomies in a clinical setting and the time course for healing neuropathic, diabetic and structural deformity hallux ulcers.

Methods: This retrospective study analyzes the medical files of 1,471 patients treated for digital foot ulcers by flexor tenotomies between September 2011 and January 2019. For the intent of this particular research, focus was preserved towards the effect of flexor tenotomy on healing time to address hallux ulcers. A total of 97 patients between the ages of 41 and 86 years old underwent flexor tenotomy for the treatment of hallux ulcers with a …


Spotlight On Icosapent Ethyl For Cardiovascular Risk Reduction: Evidence To Date, Xiaoming Jia, Stephanie Koh, Mahmoud Al Rifai, Roger S. Blumenthal, Salim S. Virani Jan 2020

Spotlight On Icosapent Ethyl For Cardiovascular Risk Reduction: Evidence To Date, Xiaoming Jia, Stephanie Koh, Mahmoud Al Rifai, Roger S. Blumenthal, Salim S. Virani

Office of the Provost

Icosapent ethyl is a highly purified formulation of eicosapentaenoic acid, a type of omega-3 fatty acid contained in fish oil. While omega-3 fatty acids have long been thought to have cardioprotective benefits, the Reduction of Cardiovascular Events with EPA-Intervention Trial (REDUCE-IT) has helped to establish icosapent ethyl as an evidence-based therapy for risk reduction of atherosclerotic cardiovascular disease (ASCVD). REDUCE-IT, however, was by no means an overnight success story. Close examination of the evidence shows that the trial was a culmination of many lessons learned from previous studies. The purpose of this manuscript is to review contemporary evidence of icosapent …


Older Adults Hospitalized For Pneumonia In The United States: Incidence, Epidemiology, And Outcomes., Forest W. Arnold, Andrea Reyes-Vega, Vidyulata Salunkhe, Stephen P. Furmanek, Christian Furman, Laura Morton, Anna Johan Faul, Pam Yankeelov, Julio A. Ramirez Jan 2020

Older Adults Hospitalized For Pneumonia In The United States: Incidence, Epidemiology, And Outcomes., Forest W. Arnold, Andrea Reyes-Vega, Vidyulata Salunkhe, Stephen P. Furmanek, Christian Furman, Laura Morton, Anna Johan Faul, Pam Yankeelov, Julio A. Ramirez

Faculty and Staff Scholarship

OBJECTIVES: To define the current incidence, epidemiology, and mortality of older adult patients hospitalized with community-acquired pneumonia (CAP) in Louisville, KY and thus estimate the burden of CAP in the older adult population of the United States. To define risk factors associated with early and late outcomes. DESIGN: This was a secondary analysis of older adults (aged ≥65 years) from the University of Louisville Pneumonia Study, a prospective population-based cohort study of all hospitalized adults with CAP between June 1, 2014, and May 31, 2016. SETTING: The study took place in all nine acute care hospitals for adults in Louisville, …


End-Of-Life Healthcare Use Of Medicare Patients With Melanoma Based On Patient Characteristics And Year Of Death, Rebecca N. Hutchinson, F. Lee Lucas, Kathleen Fairfield Jan 2020

End-Of-Life Healthcare Use Of Medicare Patients With Melanoma Based On Patient Characteristics And Year Of Death, Rebecca N. Hutchinson, F. Lee Lucas, Kathleen Fairfield

Journal of Maine Medical Center

Background: Many cancer patients receive overly-intensive care at end-of-life (EOL), despite recognition that this is a marker of poor quality. There is limited knowledge about care received by patients dying with melanoma.

Objective: We characterized healthcare utilization during EOL and patient characteristics associated with variations in care. We also described how utilization changed over time.

Methods: We used the Surveillance, Epidemiology, and End Results-Medicare database to identify 9099 melanoma patients aged 65+ at diagnosis between 2000 and 2009, who died by 12/31/2010. We included patients enrolled in Medicare part A and B six-months prior to diagnosis and not in managed …


Prevalence Of Sensorineural Hearing Loss In Children With Palliated Or Repaired Congenital Heart Disease., Lalitha Gopineti, Mane Paulpillai, Andrea Rosenquist, Andrew H. Van Bergen Jan 2020

Prevalence Of Sensorineural Hearing Loss In Children With Palliated Or Repaired Congenital Heart Disease., Lalitha Gopineti, Mane Paulpillai, Andrea Rosenquist, Andrew H. Van Bergen

Manuscripts, Articles, Book Chapters and Other Papers

Background Children with congenital heart disease (CHD) are at increased risk of neurodevelopmental deficits, and the presence of sensorineural hearing loss (SNHL) may further lead to poor language skills acquisition and speech delays. Prevalence of SNHL in the general pediatric population is estimated to be 0.2% at birth to 0.35% during adolescence. Very few studies have attempted to estimate SNHL prevalence in children who have undergone congenital heart surgery. Methods This retrospective study aimed to estimate SNHL prevalence in children who underwent congenital heart surgery in our institution and were followed up in our high-risk pediatric cardiology clinics for four …


Sé Un Héroe Tú También, Samantha S. Rohe, Sophie Cemaj Jan 2020

Sé Un Héroe Tú También, Samantha S. Rohe, Sophie Cemaj

Books: Pediatrics

This children's book explains COVID-19 and how to decrease the incidence of transmissions.


Ectopic Pregnancy In A Woman With T9 Ais A Paraplegia Secondary To High-Grade Spinal Cord Pilocytic Astrocytoma, Elisabeth K. Acker Jan 2020

Ectopic Pregnancy In A Woman With T9 Ais A Paraplegia Secondary To High-Grade Spinal Cord Pilocytic Astrocytoma, Elisabeth K. Acker

Graduate Medical Education (GME) Resident and Fellow Research Day Posters

Ectopic pregnancy in a woman with T9 AIS A (motor complete, sensory complete) paraplegia secondary to a high-grade spinal cord pilocytic astrocytoma

Background

In the United States, 20,000 women of childbearing age have a spinal cord injury (SCI). While SCI induces transient amenorrhea immediately after injury, women generally have normal reproductive function after SCI, and their fertility is unimpaired. Medications that commonly manage complications of SCI should be avoided or discontinued during pregnancy. Complications inherent to SCI, including urologic issues, are often exacerbated during pregnancy.

Methods

This is a case report on a female Veteran who initially presented to the …


Prevalence Of The Hypervirulent Nap1/Bi/027 Strain Of C. Difficile In Southwestern Virginia And Risk Factors Associated With Infection, Andrew O. Hanna, Anthony Baffoe-Bonnie, Shikha Vasudeva Jan 2020

Prevalence Of The Hypervirulent Nap1/Bi/027 Strain Of C. Difficile In Southwestern Virginia And Risk Factors Associated With Infection, Andrew O. Hanna, Anthony Baffoe-Bonnie, Shikha Vasudeva

Graduate Medical Education (GME) Resident and Fellow Research Day Posters

C. difficile infection (CDI) incidence has increased over the last several decades. The BI/NAP1/027 ribotype was discovered in 2005 and has since been responsible for multiple outbreaks in the US and Canada. This subtype of C. Difficile is known to be more virulent in vivo and produce more severe disease. Limited regional data of the prevalence of this ribotype is available, which could help guide treatment. Using infection control data from a large regional hospital and a VA medical center, this study documented the prevalence of the 027 ribotype in Southwest Virginia. Patients were included if they were tested at …


Age And Functional Outcomes Post-Neurologic Insult In Patients Attending Inpatient Rehabilitation, Jonathan Bowman Spt, Elena Crooks Pt, Dpt, Phd, Doug Weeks Phd, Kimberly Honn Phd Jan 2020

Age And Functional Outcomes Post-Neurologic Insult In Patients Attending Inpatient Rehabilitation, Jonathan Bowman Spt, Elena Crooks Pt, Dpt, Phd, Doug Weeks Phd, Kimberly Honn Phd

2020 Symposium Posters

Introduction

Neurologic insults such as strokes and traumatic brain injuries (TBI) affect over 1 million Americans every year. The lack of current knowledge informing accurate prognoses causes victims and their loved ones distress, and is a focus of much research. The purpose of this study was to determine whether patient age at time of insult could predict change in functional outcomes during inpatient rehabilitation.

Methods

Subjects were patients of an inpatient rehabilitation facility (IRF) post-stroke or TBI. The Functional Independence Measure (FIM) assessed functional independence and cognitive status at admission and discharge from the IRF. The Montebello Rehabilitation Factor Score …


Current Smoking With Or Without Chronic Bronchitis Is Independently Associated With Goblet Cell Hyperplasia In Healthy Smokers And Copd Subjects, Victor Kim, Stephanie Jeong, Huaqing Zhao, Mehmet Kesimer, Richard C. Boucher, J. Michael Wells, Stephanie A. Christenson, Meilan K. Han, Mark Dransfield, Robert Paine, Christopher B. Cooper, Igor Barjaktarevic, Russell Bowler, Jeffrey L. Curtis, Robert J. Kaner, Sarah L. O'Beirne, Wanda K. O'Neal, Stephen I. Rennard, Fernando J. Martinez, Prescott G. Woodruff Jan 2020

Current Smoking With Or Without Chronic Bronchitis Is Independently Associated With Goblet Cell Hyperplasia In Healthy Smokers And Copd Subjects, Victor Kim, Stephanie Jeong, Huaqing Zhao, Mehmet Kesimer, Richard C. Boucher, J. Michael Wells, Stephanie A. Christenson, Meilan K. Han, Mark Dransfield, Robert Paine, Christopher B. Cooper, Igor Barjaktarevic, Russell Bowler, Jeffrey L. Curtis, Robert J. Kaner, Sarah L. O'Beirne, Wanda K. O'Neal, Stephen I. Rennard, Fernando J. Martinez, Prescott G. Woodruff

Journal Articles: Pulmonary & Critical Care Med

COPD, chronic bronchitis (CB) and active smoking have all been associated with goblet cell hyperplasia (GCH) in small studies. Active smoking is strongly associated with CB, but there is a disconnect between CB clinical symptoms and pathology. Chronic cough and sputum production poorly correlate with the presence of GCH or COPD. We hypothesized that the primary determinant of GCH in ever smokers with or without airflow obstruction is active smoking. Goblet Cell Density (GCD) was measured in 71 current or former smokers [32 subjects without COPD and 39 COPD subjects]. Endobronchial mucosal biopsies were stained with Periodic Acid Schiff-Alcian Blue, …


Co-Morbidity Patterns Identified Using Latent Class Analysis Of Medications Predict All-Cause Mortality Independent Of Other Known Risk Factors: The Copdgene® Study, Yisha Li, Margaret Ragland, Erin Austin, Kendra Young, Katherine Pratte, John E. Hokanson, Terri H Beaty, Elizabeth A. Regan, Stephen I. Rennard, Christina Wern, Michael R. Jacobs, Ruth Tal-Singer, Barry J. Make, Gregory L. Kinney, Copdgene Investigators Jan 2020

Co-Morbidity Patterns Identified Using Latent Class Analysis Of Medications Predict All-Cause Mortality Independent Of Other Known Risk Factors: The Copdgene® Study, Yisha Li, Margaret Ragland, Erin Austin, Kendra Young, Katherine Pratte, John E. Hokanson, Terri H Beaty, Elizabeth A. Regan, Stephen I. Rennard, Christina Wern, Michael R. Jacobs, Ruth Tal-Singer, Barry J. Make, Gregory L. Kinney, Copdgene Investigators

Journal Articles: Pulmonary & Critical Care Med

PURPOSE: Medication patterns include all medications in an individual's clinical profile. We aimed to identify chronic co-morbidity treatment patterns through medication use among COPDGene participants and determine whether these patterns were associated with mortality, acute exacerbations of chronic obstructive pulmonary disease (AECOPD) and quality of life.

MATERIALS AND METHODS: Participants analyzed here completed Phase 1 (P1) and/or Phase 2 (P2) of COPDGene. Latent class analysis (LCA) was used to identify medication patterns and assign individuals into unobserved LCA classes. Mortality, AECOPD, and the St. George's Respiratory Questionnaire (SGRQ) health status were compared in different LCA classes through survival analysis, logistic …


Progressive Dyspnea After Use Of Electronic Vaping, Taylor Studsrud, Morgan Zegers, Gary Cook, Narrani Kanapathippillai, Hilton Alemar-Hernandez Jan 2020

Progressive Dyspnea After Use Of Electronic Vaping, Taylor Studsrud, Morgan Zegers, Gary Cook, Narrani Kanapathippillai, Hilton Alemar-Hernandez

West Florida Division GME Research Day 2020

No abstract provided.


Blood Eosinophil Counts In Clinical Trials For Chronic Obstructive Pulmonary Disease, Dave Singh, Mona Bafadhel, Christopher E. Brightling, Frank C. Sciurba, Jeffrey L. Curtis, Fernando J. Martinez, Cara B. Pasquale, Debora D. Merrill, Norbert Metzdorf, Stefano Petruzzelli, Ruth Tal-Singer, Christopher Compton, Stephen I. Rennard, Ubaldo J. Martin Jan 2020

Blood Eosinophil Counts In Clinical Trials For Chronic Obstructive Pulmonary Disease, Dave Singh, Mona Bafadhel, Christopher E. Brightling, Frank C. Sciurba, Jeffrey L. Curtis, Fernando J. Martinez, Cara B. Pasquale, Debora D. Merrill, Norbert Metzdorf, Stefano Petruzzelli, Ruth Tal-Singer, Christopher Compton, Stephen I. Rennard, Ubaldo J. Martin

Journal Articles: Pulmonary & Critical Care Med

No abstract provided.


Heme Metabolism Genes Downregulated In Copd Cachexia, Ava C. Wilson, Preeti L. Kumar, Sool Lee, Margaret M. Parker, Itika Arora, Jarrett D. Morrow, Emiel F.M. Wouters, Richard Casaburi, Stephen I. Rennard, David A. Lomas, Alvar Agusti, Ruth Tal-Singer, Mark T. Dransfield, J. Michael Wells, Surya P. Bhatt, George Washko, Victor J. Thannickal, Hemant K. Tiwari, Craig P. Hersh, Peter J. Castaldi, Edwin K. Silverman, Merry-Lynn N. Mcdonald Jan 2020

Heme Metabolism Genes Downregulated In Copd Cachexia, Ava C. Wilson, Preeti L. Kumar, Sool Lee, Margaret M. Parker, Itika Arora, Jarrett D. Morrow, Emiel F.M. Wouters, Richard Casaburi, Stephen I. Rennard, David A. Lomas, Alvar Agusti, Ruth Tal-Singer, Mark T. Dransfield, J. Michael Wells, Surya P. Bhatt, George Washko, Victor J. Thannickal, Hemant K. Tiwari, Craig P. Hersh, Peter J. Castaldi, Edwin K. Silverman, Merry-Lynn N. Mcdonald

Journal Articles: Pulmonary & Critical Care Med

INTRODUCTION: Cachexia contributes to increased mortality and reduced quality of life in Chronic Obstructive Pulmonary Disease (COPD) and may be associated with underlying gene expression changes. Our goal was to identify differential gene expression signatures associated with COPD cachexia in current and former smokers.

METHODS: We analyzed whole-blood gene expression data from participants with COPD in a discovery cohort (COPDGene, N = 400) and assessed replication (ECLIPSE, N = 114). To approximate the consensus definition using available criteria, cachexia was defined as weight-loss > 5% in the past 12 months or low body mass index (BMI) (<  20 kg/m

RESULTS: The prevalence of …


Improving The Evaluation Of Copd Exacerbation Treatment Effects By Accounting For Early Treatment Discontinuations: A Post-Hoc Analysis Of Randomized Clinical Trials., Agnieszka Król, Robert Palmér, Virginie Rondeau, Stephen I. Rennard, Ulf G. Eriksson, Alexandra Jauhiainen Jan 2020

Improving The Evaluation Of Copd Exacerbation Treatment Effects By Accounting For Early Treatment Discontinuations: A Post-Hoc Analysis Of Randomized Clinical Trials., Agnieszka Król, Robert Palmér, Virginie Rondeau, Stephen I. Rennard, Ulf G. Eriksson, Alexandra Jauhiainen

Journal Articles: Pulmonary & Critical Care Med

BACKGROUND: Chronic obstructive pulmonary disease (COPD) clinical trials aimed at evaluating treatment effects on exacerbations often suffer from early discontinuations of randomized treatment. Treatment discontinuations imply a loss of information and should ideally be considered in the statistical analysis of trial results, particularly if the discontinuations are related to the disease or treatment itself. Here, we explore this issue by investigating (1) whether there exists an association between the risks of exacerbation and treatment discontinuation in COPD clinical trials and (2) whether disregarding this association can cause bias in exacerbation treatment effect estimates. We focus on the hypothetical estimand, i.e. …


Agonist-Specific Desensitization Of Pge2-Stimulated Camp Signaling Due To Upregulated Phosphodiesterase Expression In Human Lung Fibroblasts, Francisco J. Nunez, Nancy Schulte, David M. Fogel, Joel Michalski, Stephen I. Rennard, Raymond B. Penn, Myron L. Toews, Rennolds S. Ostrom Jan 2020

Agonist-Specific Desensitization Of Pge2-Stimulated Camp Signaling Due To Upregulated Phosphodiesterase Expression In Human Lung Fibroblasts, Francisco J. Nunez, Nancy Schulte, David M. Fogel, Joel Michalski, Stephen I. Rennard, Raymond B. Penn, Myron L. Toews, Rennolds S. Ostrom

Journal Articles: Pulmonary & Critical Care Med

Pulmonary fibrosis is characterized by fibroblasts persisting in an activated form, producing excessive fibrous material that destroys alveolar structure. The second messenger molecule cyclic 3',5'-adenosine monophosphate (cAMP) has antifibrotic properties, and prostaglandin E2 (PGE2) can stimulate cAMP production through prostaglandin E (EP)2 and EP4 receptors. Although EP receptors are attractive therapeutic targets, the effects of long-term exposure to PGE2 have not been characterized. To determine the effects of long-term exposure of lung fibroblasts to PGE2, human fetal lung (HFL)-1 cells were treated for 24 h with 100 nM PGE2 or other cAMP-elevating agents. cAMP levels stimulated by acute exposure to …